One word..

Devmon

http://sourceforge.org/projects/devmon

Mike -----Original Message----- From: itsimonb at gmail.com [mailto:itsimonb at gmail.com] On Behalf Of Szymon Bakowski Sent: 16 January 2008 11:00 To: hobbit at hswn.dk Subject: Re: [hobbit] Cisco switches

On 16/01/2008, Nikesh Maharaj <NMaharaj at tcta.co.za> wrote:

Hi guys,

Can I monitor the cpu utilization on my cisco switches ? im currently monitoring but with a ping only.

Any ideas if more can be monitored using hobbit ?

Thanks

If you need some specific stuff (as cpu utilization) I would say SNMP (chack MID db on cisco website at http://tools.cisco.com/ITDIT/MIBS/servlet/index) + RRD and then trying to wrap it as a new service ? Or maybe it already exists ?

Cheers.

Szymon

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----- Original Message ----- From: "Henrik Stoerner" <henrik at hswn.dk> To: <hobbit at hswn.dk> Sent: Wednesday, January 16, 2008 3:01 PM Subject: Re: [hobbit] Cisco switches

The current snapshot of Hobbit can fetch data through SNMP, and one of the things I am using it for is to collect data about switches. We use Nortel's Passport-8600 switches here, but it can be configured for any kind of SNMP-enabled host. So just picking up the current load of the switch (cpu, memory, fabric utilisation) and the traffic on each port is done with this config entry in hobbit-snmphosts.cfg:

[pp8600.foo.com] version=2 community=public p8600system ifmib=!*!

"p8600system" and "ifmib" are actually pointers into hobbit-snmpmibs.cfg which has the details of what SNMP objects to retrieve (just showing a couple of items):

[p8600system] Descr = SNMPv2-MIB::sysDescr.0 UpTime = RFC1213-MIB::sysUpTime.0 BufferUtil = RAPID-CITY::rcSysBufferUtil.0 /rrd:GAUGE CpuUtil = RAPID-CITY::rcSysCpuUtil.0 /rrd:GAUGE

[ifmib] keyidx (IF-MIB::ifDescr) keyidx !IF-MIB::ifIndex! ifHCInOctets = IF-MIB::ifHCInOctets /rrd:COUNTER ifHCOutOctets = IF-MIB::ifHCOutOctets /rrd:COUNTER

Are those two configurationfiles replacements for hobbit_snmpcollect.cfg?

Regards, Henrik

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-- Regards Lars Ebeling

http://leopg9.no-ip.org Hobbithobbyist

"It is better to keep your mouth shut and appear stupid than to open it and remove all doubt." -- Mark Twain

This is what I get if I start devmon :

[root at nms01 devmon]# ./devmon --readbbhosts

[08-01-16 at 15:06:20] Could not query device: szarctasvr01

[root at nms01 devmon]#

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: 16 January 2008 02:38 PM To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

I have installed devmon. How do I start it ? (sori, new to linux)

Page not updating with the required parameters

page cisco Switches and Routers

192.168.18.72 szarctasvr01 # badconn:1:1:2 NAME "Server Lan 192.168.16.0/24" DEVMON:tests(cpu,power)

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: 16 January 2008 12:52 PM To: hobbit at hswn.dk Subject: [hobbit] Cisco switches

Hi guys,

Can I monitor the cpu utilization on my cisco switches ? im currently monitoring but with a ping only.

Any ideas if more can be monitored using hobbit ?

Thanks

/usr/local/devmon/devmon

I think it needs to be put in the CRONTAB also.

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: Wednesday, January 16, 2008 7:38 AM To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

I have installed devmon. How do I start it ? (sori, new to linux)

Page not updating with the required parameters

page cisco Switches and Routers

192.168.18.72 szarctasvr01 # badconn:1:1:2 NAME "Server Lan 192.168.16.0/24" DEVMON:tests(cpu,power)

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: 16 January 2008 12:52 PM To: hobbit at hswn.dk Subject: [hobbit] Cisco switches

Hi guys,

Can I monitor the cpu utilization on my cisco switches ? im currently monitoring but with a ping only.

Any ideas if more can be monitored using hobbit ?

Thanks

This was a single node installation. Do I have to create the database ?

[root at nms01 etc]# /downloads/devmon/devmon --readbbhosts

[08-01-16 at 16:24:27] Could not query device: szacttctasrv01.metsi.com

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 16 January 2008 03:48 PM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

Start a instance of devmon during the startup of the system (or by hand with the command /usr/local/devmon/devmon )

this will get the snmp information from your hosts.

Start devmon in the cron to get changes of the bb-hosts file with the --readbbhosts

this will update the devmon database.

H. Klomp National Aerospace Laboratory NLR Computer Infrastructure Development

Dedicated to innovation in aerospace

From: Michael A. Price [mailto:mprice at sgt-inc.com] 
Sent: woensdag 16 januari 2008 14:17
To: hobbit at hswn.dk
Subject: RE: [hobbit] Cisco switches

/usr/local/devmon/devmon

 

I think it needs to be put in the CRONTAB also.

 

 

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] 
Sent: Wednesday, January 16, 2008 7:38 AM
To: hobbit at hswn.dk
Subject: RE: [hobbit] Cisco switches

 

I have installed devmon. How do I start it ? (sori, new to

linux)

Page not updating with the required parameters

 

page cisco Switches and Routers

192.168.18.72   szarctasvr01            # badconn:1:1:2 NAME

"Server Lan 192.168.16.0/24" DEVMON:tests(cpu,power)

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] 
Sent: 16 January 2008 12:52 PM
To: hobbit at hswn.dk
Subject: [hobbit] Cisco switches

 

Hi guys, 

 

Can I monitor the cpu utilization on my cisco switches ? im

currently monitoring but with a ping only.

Any ideas if more can be monitored using hobbit ?

 

Thanks 

On Jan 16, 2008 8:31 AM, Nikesh Maharaj <NMaharaj at tcta.co.za> wrote:

The devmon.cfg is default. The correct path to the bbhosts file is in the cfg file.

Not too sure about creating the database though cos the installation notes don't specify for a single node installation. Am I incorrect ?

---

*From:* Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] *Sent:* 16 January 2008 04:21 PM

*To:* hobbit at hswn.dk *Subject:* RE: [hobbit] Cisco switches

This was a single node installation. Do I have to create the database ?

[root at nms01 etc]# /downloads/devmon/devmon --readbbhosts

[08-01-16 at 16:24:27] Could not query device: szacttctasrv01.metsi.com

*From:* Klomp, H. [mailto:klomph at nlr.nl] *Sent:* 16 January 2008 03:48 PM *To:* 'hobbit at hswn.dk' *Subject:* RE: [hobbit] Cisco switches

Start a instance of devmon during the startup of the system (or by hand with the command /usr/local/devmon/devmon )

this will get the snmp information from your hosts.

Start devmon in the cron to get changes of the bb-hosts file with the --readbbhosts

this will update the devmon database.

*H. Klomp* *National Aerospace Laboratory NLR* *Computer Infrastructure Development*

*Dedicated to innovation in aerospace*

---

*From:* Michael A. Price [mailto:mprice at sgt-inc.com] *Sent:* woensdag 16 januari 2008 14:17 *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] Cisco switches

/usr/local/devmon/devmon

I think it needs to be put in the CRONTAB also.

*From:* Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] *Sent:* Wednesday, January 16, 2008 7:38 AM *To:* hobbit at hswn.dk *Subject:* RE: [hobbit] Cisco switches

I have installed devmon. How do I start it ? (sori, new to linux)

Page not updating with the required parameters

page cisco Switches and Routers

192.168.18.72 szarctasvr01 # badconn:1:1:2 NAME "Server Lan 192.168.16.0/24" DEVMON:tests(cpu,power)

---

*From:* Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] *Sent:* 16 January 2008 12:52 PM *To:* hobbit at hswn.dk *Subject:* [hobbit] Cisco switches

Hi guys,

Can I monitor the cpu utilization on my cisco switches ? im currently monitoring but with a ping only.

Any ideas if more can be monitored using hobbit ?

Thanks

I have a single node running with devmon, but I also have a database.

Bert

From: Ralph Mitchell [mailto:ralphmitchell at gmail.com] Sent: woensdag 16 januari 2008 15:55 To: hobbit at hswn.dk Subject: Re: [hobbit] Cisco switches

On Jan 16, 2008 8:31 AM, Nikesh Maharaj <NMaharaj at tcta.co.za<mailto:NMaharaj at tcta.co.za>> wrote:

The devmon.cfg is default. The correct path to the bbhosts file is in the cfg file.

Not too sure about creating the database though cos the installation notes don't specify for a single node installation. Am I incorrect ?

As I understand it, the database is only required if you have multiple systems running devmon.

Ralph Mitchell

Devmon is still having a problem as per line below :

[root at nms01 etc]# /downloads/devmon/devmon --readbbhosts

[08-01-16 at 20:42:17] Could not query device: 192.168.18.72

[root at nms01 etc]#

Any ideas guys ?

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: 16 January 2008 08:30 PM To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

I can ping the switch by its ip address but not by name from hobbit server and feel therefore

That devmon -readbbhosts is having a problem resolving this. Do I have to put in a name in the bb-hosts file ?

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 16 January 2008 05:08 PM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

I have a single node running with devmon, but I also have a database.

Bert

From: Ralph Mitchell [mailto:ralphmitchell at gmail.com] 
Sent: woensdag 16 januari 2008 15:55
To: hobbit at hswn.dk
Subject: Re: [hobbit] Cisco switches

On Jan 16, 2008 8:31 AM, Nikesh Maharaj <NMaharaj at tcta.co.za>

wrote:

	The devmon.cfg is default. The correct path to the

bbhosts file is in the cfg file.

	Not too sure about creating the database though cos the

installation notes don't specify for a single node installation. Am I incorrect ?

As I understand it, the database is only required if you have

multiple systems running devmon.

Ralph Mitchell

 

On Wednesday 16 January 2008 20:50:02 Nikesh Maharaj wrote:

I can ping the device by ip and by name. however, devmon still has a problem to query the device.

Well, devmon obviously does not ping. It does a number of SNMP gets to the device. When you run it with the --readbbhosts option, it runs in the foreground (thus, does no logging), and tries to retrieve the sysDescr value for each entry in bbhosts which has a DEVMON tag.

SNMP (v2) relies on a community string, which is effectively a password, to "authenticate" the SNMP client (manager). Devmon provides for generic community strings (set in the SNMPCIDS value in devmon.cfg). Thus, in most cases, the default devmon.cfg file is not going to work (you need to at least set SNMPCIDS, and probably BBHOSTS as well).

Devmon uses the sysDescr value to decide what type of device this is, and populates information to the "database file". The database file should be provided via the -d option to devmon (this is *not* the RDBMS referred to for the multinode setup).

To test whether devmon would be able to do this:

$ snmpwalk -v2c -c public xxx.xxx.xxx.xxx sysDescr

Replace public with the community string, and xxx.xxx.xxx.xxx with the IP. If you can't do this, fix the SNMP config on the device, or firewall access etc.

Setting devmon up is relatively trivial if you: 1)Know at least the minimum about snmp 2)You know the bare minimum of setting up software (read the documentation, read the config file and set the settings that are obviously incorrect for your environment, run the tool with --help etc.).

There is no log file generated for devmon as yet. Any ideas ?

There's no use running devmon (without the --readbbhosts option) until you have actually managed to probe one device.

So, to get devmon running: 1)Edit the devmon.cfg file correcting values that are not valid in your environment 2)Run './devmon - --readbbhosts' 3)Start devmon with './devmon'

Add any relevant options (.e.g -vv, --debug, '-c /path/to/config', or '-d /path/to/hosts.db') described in the --help output.

You may want to use an init script for (3), a sample one is provided in the extras directory. You may want devmon to run as a dedicated user, in which case you should run (2) and (3) as this user, and ensure the directories devmon needs to write to are writable by this user. For these reasons, you may want to look at this patch (which I ship in the Mandriva package of devmon, which effectively works out-the-box): http://svn.mandriva.com/cgi-bin/viewvc.cgi/packages/cooker/devmon/current/SO...

I will probably merge some of my changes into devmon itself for the upcoming 0.3.0 release (to make things a bit easier).

Now, if there is something which is not basic SNMP or Unix knowledge which is difficult about getting devmon running, please let me know so we can improve the documentation.

Regards, Buchan

Im not sure if snmp is installed. How do I check that ? also, after starting the devmon process, I try to do a grep for devmon

And don't see anything ?

From: Hubbard, Greg L [mailto:greg.hubbard at eds.com] Sent: 16 January 2008 08:59 PM To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

SNMP community string specified correctly? Will the device talk to the devmon host (no ACL or other "blocks") in the way?

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] 
Sent: Wednesday, January 16, 2008 12:36 PM
To: hobbit at hswn.dk
Subject: RE: [hobbit] Cisco switches

Devmon is still having a problem as per line below :

 

[root at nms01 etc]# /downloads/devmon/devmon --readbbhosts

[08-01-16 at 20:42:17] Could not query device: 192.168.18.72

[root at nms01 etc]#

 

Any ideas guys ?

 

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] 
Sent: 16 January 2008 08:30 PM
To: hobbit at hswn.dk
Subject: RE: [hobbit] Cisco switches

 

I can ping the switch by its ip address but not by name from

hobbit server and feel therefore

That devmon -readbbhosts is having a problem resolving this. Do

I have to put in a name in the bb-hosts file ?

From: Klomp, H. [mailto:klomph at nlr.nl] 
Sent: 16 January 2008 05:08 PM
To: 'hobbit at hswn.dk'
Subject: RE: [hobbit] Cisco switches

 

I have a single node running with devmon, but I also have a

database.

Bert

	 

	

	From: Ralph Mitchell [mailto:ralphmitchell at gmail.com] 
	Sent: woensdag 16 januari 2008 15:55
	To: hobbit at hswn.dk
	Subject: Re: [hobbit] Cisco switches

	On Jan 16, 2008 8:31 AM, Nikesh Maharaj

<NMaharaj at tcta.co.za> wrote:

		The devmon.cfg is default. The correct path to

the bbhosts file is in the cfg file.

		Not too sure about creating the database though

cos the installation notes don't specify for a single node installation. Am I incorrect ?

	As I understand it, the database is only required if you

have multiple systems running devmon.
Ralph Mitchell

As stated in the manual you have to put in a line in the bb-hosts file like 0.0.0.0 cisco_name # DEVMON

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: woensdag 16 januari 2008 19:30 To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

I can ping the switch by its ip address but not by name from hobbit server and feel therefore That devmon -readbbhosts is having a problem resolving this. Do I have to put in a name in the bb-hosts file ?

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 16 January 2008 05:08 PM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

I have a single node running with devmon, but I also have a database.

Bert

From: Ralph Mitchell [mailto:ralphmitchell at gmail.com] Sent: woensdag 16 januari 2008 15:55 To: hobbit at hswn.dk Subject: Re: [hobbit] Cisco switches On Jan 16, 2008 8:31 AM, Nikesh Maharaj <NMaharaj at tcta.co.za<mailto:NMaharaj at tcta.co.za>> wrote:

The devmon.cfg is default. The correct path to the bbhosts file is in the cfg file.

Not too sure about creating the database though cos the installation notes don't specify for a single node installation. Am I incorrect ?

As I understand it, the database is only required if you have multiple systems running devmon.

Ralph Mitchell

can you do a snmpwalk or snmpget on that host ? Do you have a the perl snmp modules installed ?

Bert

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: donderdag 17 januari 2008 11:37 To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

Yip that's what I added in the bb-hosts:

192.168.18.72 szacttctasrv1.net.cen.tcta.co.za # DEVMON

then I ran /downloads /devmon/devmon -readbbhosts

[root at nms01 etc]# /downloads/devmon/devmon --readbbhosts [08-01-17 at 12:42:35] Could not query device: szacttctasrv1.net.cen.tcta.co.za [root at nms01 etc]#

Also I don't see any devmon instances running if I run ps -ef | grep devmon

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 17 January 2008 10:25 AM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

As stated in the manual you have to put in a line in the bb-hosts file like 0.0.0.0 cisco_name # DEVMON

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: woensdag 16 januari 2008 19:30 To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches I can ping the switch by its ip address but not by name from hobbit server and feel therefore That devmon -readbbhosts is having a problem resolving this. Do I have to put in a name in the bb-hosts file ?

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 16 January 2008 05:08 PM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

I have a single node running with devmon, but I also have a database.

Bert

From: Ralph Mitchell [mailto:ralphmitchell at gmail.com] Sent: woensdag 16 januari 2008 15:55 To: hobbit at hswn.dk Subject: Re: [hobbit] Cisco switches On Jan 16, 2008 8:31 AM, Nikesh Maharaj <NMaharaj at tcta.co.za<mailto:NMaharaj at tcta.co.za>> wrote:

The devmon.cfg is default. The correct path to the bbhosts file is in the cfg file.

Not too sure about creating the database though cos the installation notes don't specify for a single node installation. Am I incorrect ?

As I understand it, the database is only required if you have multiple systems running devmon.

Ralph Mitchell

You can try to use cpan for installing perl modules

For devmon to work, you need to have snmp access to the switches en you need SNMP_Session perl module See the INSTALL file in the devmon/docs directory.

Bert

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: donderdag 17 januari 2008 15:12 To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches

Nope .. I downloaded and have no idea how to install..

Perl cisco_cpu.pl ?

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 17 January 2008 03:21 PM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

can you do a snmpwalk or snmpget on that host ? Do you have a the perl snmp modules installed ?

Bert

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: donderdag 17 januari 2008 11:37 To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches Yip that's what I added in the bb-hosts:

192.168.18.72 szacttctasrv1.net.cen.tcta.co.za # DEVMON

then I ran /downloads /devmon/devmon -readbbhosts

[root at nms01 etc]# /downloads/devmon/devmon --readbbhosts [08-01-17 at 12:42:35] Could not query device: szacttctasrv1.net.cen.tcta.co.za [root at nms01 etc]#

Also I don't see any devmon instances running if I run ps -ef | grep devmon

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 17 January 2008 10:25 AM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

As stated in the manual you have to put in a line in the bb-hosts file like 0.0.0.0 cisco_name # DEVMON

From: Nikesh Maharaj [mailto:NMaharaj at tcta.co.za] Sent: woensdag 16 januari 2008 19:30 To: hobbit at hswn.dk Subject: RE: [hobbit] Cisco switches I can ping the switch by its ip address but not by name from hobbit server and feel therefore That devmon -readbbhosts is having a problem resolving this. Do I have to put in a name in the bb-hosts file ?

From: Klomp, H. [mailto:klomph at nlr.nl] Sent: 16 January 2008 05:08 PM To: 'hobbit at hswn.dk' Subject: RE: [hobbit] Cisco switches

I have a single node running with devmon, but I also have a database.

Bert

From: Ralph Mitchell [mailto:ralphmitchell at gmail.com] Sent: woensdag 16 januari 2008 15:55 To: hobbit at hswn.dk Subject: Re: [hobbit] Cisco switches On Jan 16, 2008 8:31 AM, Nikesh Maharaj <NMaharaj at tcta.co.za<mailto:NMaharaj at tcta.co.za>> wrote:

The devmon.cfg is default. The correct path to the bbhosts file is in the cfg file.

Not too sure about creating the database though cos the installation notes don't specify for a single node installation. Am I incorrect ?

As I understand it, the database is only required if you have multiple systems running devmon.

Ralph Mitchell